Portable bicycle stand



FIG. 1 is a perspective view of a portable bicycle stand, showing my new design;

FIG. 2 is a left-side elevational view of a portable bicycle stand shown in FIG. 1;

FIG. 3 is a right-side elevational view of a portable bicycle stand shown in FIG. 1;

FIG. 4 is a front elevational view of a portable bicycle stand shown in FIG. 1;

FIG. 5 is a rear elevational view of a portable bicycle stand shown in FIG. 1;

FIG. 6 is a top plan view of a portable bicycle stand shown in FIG. 1; and

FIG. 7 is a bottom plan view of a portable bicycle stand shown in FIG. 1; and,

FIG. 8 is a perspective view of a portable bicycle stand shown in FIG. 1 in its environment.

The broken lines form no part of the claimed design. 

The ornamental design for a portable bicycle stand, as shown and described. 